/**
 * Copyright (c) 2009, http://www.softwareinlife.com. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided that 
 * the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 * 
 * 3. Neither the name of the http://www.softwareinlife.com nor the names of its 
 *    contributors may be used to endorse or promote products derived from 
 *    this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE SOFTWAREINLIFE AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.softwareinlife.vision.android.system.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.text.Editable;

/**
 * @author Jang, Sun-Jin (jangsunjin@softwareinlife.com)
 * @date 2009. 10. 11.
 */
public class StringUtil {

	/**
	 * Date Format Pattern
	 */
	public static final String DATE_FORMAT_PATTERN = "yyyy-MM-dd HH:mm:ss";
	
	/**
	 * toString
	 * 
	 * @param String
	 * @return removed null String
	 */
	public static String toString(String str) {
		if (str == null) {
			return "";
		} else {
			return str;
		}
	}

	/**
	 * toString
	 * 
	 * @param date
	 * @return GMT String
	 */
	public static String toString(Date date) {
		String con = "";
		if (date != null) {
			SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT_PATTERN);
			con = format.format(date);
		}
		
		return con;
	}

	/**
	 * toString
	 * 
	 * @param int num
	 * @return toString
	 */
	public static String toString(Integer num) {
		if (num != null) {
			return "0";
		} else {
			return num.toString();
		}
	}

	/**
	 * toInt
	 * 
	 * @param num
	 * @return toInt
	 */
	public static int toInt(String num) {
		int con = 0;
		if (num != null) {
			try {
				con = Integer.parseInt(num);
			} catch (NumberFormatException nfe) {
				// nfe.printStackTrace();
			} catch (Exception e) {
				// e.printStackTrace();
			}
		}

		return con;
	}

	/**
	 * 
	 * @param columnValue
	 * @return
	 */
	public static Date toDate(String dateStr) {
		Date date = null;
		if (dateStr != null) {
			
			try {
				SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT_PATTERN);
				date = format.parse(dateStr);
			} catch (ParseException e) {
				e.printStackTrace();
			}
		}
		
		return date;
	}

	/**
	 * toString
	 * 
	 * @param text
	 * @return str
	 */
	public static String toString(Editable text) {
		if (text != null) {
			return text.toString();
		} else {
			return "";
		}
	}
}
